Process of protecting pumps from ozone.



C. KNIPS. "-Pig orynomomm PUMPS FROM 020m. APPLICATION FILED JULY 13,1911.

[1,103,21 1, v "Patented Jul 14, 191 1 22 2. mnvzssss If "ressors has wwfiammm 1 enarsworn KNIPS, or cnnnnor'rnnnune, GERMANY, .nssieivon' TO srEMENs & msmnxrrnnensnnnscnnrr, OF-BERLIN, GERMANY, a CORPORATION or "Gasman-Y.

- Q rnocnss or rnornorms Pours rnom' ozoivn.

1,103,2 1,, $pecifieationof Letters Patent. P t nt d z To all whom it may concern Be it known that l, Cnmsrorn Kivres, a

ing at Charlottenburg, near Berlin, Germany, have invented a certain newand use-- inl Improved Process of Protecting Pumps from'Ozone, of which the following is a specification.

The present invention relates to the proftecticn' of pumps, compressors and the like from the corrosive action of ozone,-in proc apparatus.

esses which employ these devicesfor snpp ly. ing ozone or ozonized air to the sterilizationlVa'ter 1s frequently ozonized by the mix C ture of ozone and air being forced by means of in ectors or compressors from 'the'ozone like traversed by the water to betreate-d. In general, injectors operate less favorably than generator into a sterilization 'tower'or the compressors; in addition, the employment of the same is connected with various disadvantages because the conveyance-of the air iscompletely dependent on the flow of water, whereas working with compressors both ad mitscof the employment of any desired quan-,

,tities of air and also enables the ozone appa-- 'ratus to be started independently of the time whenthe water flows.- The hitherto customary ozonizing process employing coinhowever, the disadvantage that the metal parts corrode owing to the direct action of the .mlxtureof ozone and air, such;

corrosive action being due in partto the oxidizing property of ozone and 1n part to defective greasing, because the oil'becomes resinified under the act on of the ozone. In

addition, the oil is vaporized in consequence of the heat of compression, and part of the vapors passestogether with the mixture of ozone and air into the water tobe ozonized.

' This defect is, of course, particularly serious in the ozoniz'ation-of drinking water. Now.

a primary object of my invention is to provide a process of ozonizing water to which these defects are not attached. My improved process consists in supplying small quantities of water with the Inn;- ture of ozone and air to the pump or the like while it is sucking in the mixture, such quantities not 01y being suiiicient for pre-.

venting the inner metal parts of the pump being oxidized, but also rendering unnecessary the employment of speciallubricating agents slich as'oil. The pump sucks in-this quantity of'water preferably simultaneously way off the pipe 0 fromthe ozoneapparatus A; slmultaneously, the compressor has-supof particles of oil in the torm of vapor in the drinking-water are; impossible, because ejected water is cooled more than when compressors cooled. by water-jackets are 'emin e m filed an is} 1911. Serial no. 639,177.

with the, mixture of ozone and air coming from the ozone apparatus and forces the. 7

mixture consisting of ozone, air and'asmall quantity otwater into the sterilizing tower or the l 1ke,n1to,wh1chtl1e water to be sterilized is'injtrodhced-and where the real ozoni zationof the. water to take place. In order to obtainin thepump as fine'a distri- I 1 bntion of the wateras possible in the current efgas and-toaxnois't'en the metal surfaces as completely as possible I prefer to-introduce' the ,water through spray-nozzles.--

One form of apparatus suitable for carry lng my, process into practice is diagram:

in the accompanying drawing.

Figure 1' is a sectional elevation of the compressor, and Fig. *2'isa sectional dia gram melevation of the complete apparatus" the sterilizing tower.

" Referring to the drawing, the compressor C sucks the mixture of ozone and air by plied to it through the pipe W small quantities of water which are finely'divided by I.

spray-nozzles D. I The mixture of ozone, air and water is forced through the pi pe S into the sterilization tower. T.

In the process forming of this invention on the one hand oxidation of the metallic parts of theapparatus is pre-v vented owing to; the parts being covered from the direct 7 action of timezone, and

on the other handboth' corrosion owing to re'slnified lubricating oil, and the occurrence greasing with oil is entirely done away with.

An additional, advantage of my process 18" that the compressed air cooled by the inployed; this'circumstance is of special importance in-the treatment of drinking-water v.becausein this case rises of temperature a y p 70. matically represented by way of example as 1comprisingthe ozone supply, the pump and the-subject matter i wlth 'a'film' of water and thereby protected ozone, consisting in supplying a smallquan- 10 of a pump from the corrosive'aotion of ozone, conslsting in supplying a small-quan tity of water to-the pump or the like approximately simultaneously as it is" sucking /'in the ozonized air,

.or the like owing tothe influ'en'ceof the ozone, an d the vemp-loymentof special greas.

ing agents. I v p 3. The method of protecting the interior of apump from .thecorrosive action of ozone, which comprises sucking in ozonized' alr from the ozone generator, supplying a" small quantity of water to the pump or the .45 lik while it is sucking in the ozonized air,

v the said quantity of. i water being sufficient for avoiding both oxi dation. of the inner metal parts-of the pump.

the said quantity of Water being suflicient' for avoiding oxidation of t-he mner metal parts ofthe pump or the'like,"owing to the influence of the ozone,

ter LHUO the water to be sterilized.

4. The method of protecting the.- interior of, a. pump from the corrosive action of ozone; which comprises sucking in ozoniz ed 4 airfrom the .ozone generator, supplying a small quantity of water to the pump or the like, Simultaneously While -it is sucking in ozoniz'ed air and. this smallquantlty of waand forcing the a the ozonized air, the-said quantit; of water being sufiicient for avoiding oxidationof the inner metal parts of the pump or the like, owing to the'influence of the ozone, and

forcing the ozonized air and this small quantity of water into the water to be sterilized.

' In testi-mony whereof I, sign my name to this specification in the presence of two witnesses. t

CHRISTOPH KNIPS'. Witnesses:

HENRY HAsrEn, WVOLDEMAR HAUPT'. 

